Oilfield workover rig operation system

Abstract

The utility model relates to an oil field workover rig operation system which comprises a hydraulic system, a steel rope winch, a dead line fixer, a derrick, a weight indicator box, a large hook, a power tong, a first data acquisition device and a second data acquisition device which are all carried on a loading vehicle. The hydraulic system comprises a hydraulic power source and a first hydraulic pipeline connected with the hydraulic power source, the hydraulic power source is close to a cab of the loading automobile, and the first hydraulic pipeline is wired from the bottom surface of an automobile chassis, extends out of the automobile chassis and then is connected with a hydraulic execution device of the power tongs; the first data acquisition equipment is used for acquiring the pressure of hydraulic oil in the first hydraulic pipeline, and the pressure value of the hydraulic oil in the first hydraulic pipeline is consistent with the pressure value applied to the oil pipe by the power tongs. According to the oil field workover rig operation system, the tension value of the large hook and the tension value of the power tongs can be collected.

Description

Technical Field

[0001] The present application relates to the technical field of oilfield well repair, and in particular to an oilfield well repair machine operation system. Background Art

[0002] Oilfield workover is an important part of the oilfield production process, and its main purpose is to ensure the normal production capacity of the oil well. The main work content of oilfield workover is daily maintenance work, including pump inspection, jam removal, sand flushing, simple fishing, etc. These operations must be achieved by frequently lowering the oil pipe.

[0003] In the prior art, operators can operate the big hook and power clamp in the oilfield well repair equipment, and arrange and perform the operation process of "lifting the oil pipe" or "lowering the oil pipe" by reading the weight gauge and pressure gauge in the oilfield well repair equipment. However, since the oilfield well repair operation is heavy, intensive and dangerous, if the operator reads the numerical value during the construction process, it will not only increase the difficulty of the operator's work, but also increase the risk of accidents and incidents during the operation. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the present application proposes an oilfield workover rig operating system. By setting a data acquisition device in the oilfield workover rig, the tension value of the big hook and the pressure value of the power clamp can be collected, so that the operator can obtain the tension value of the big hook and the pressure value of the power clamp in an extremely convenient way, and according to the tension value of the big hook and the pressure value of the power clamp, the operator can promptly discover the abnormal situation in the well and take measures to improve the safety of the operation.

[0005] The embodiment of the present application proposes an oilfield well repair machine operation system, including: a hydraulic system, a steel rope winch, a dead rope fixer, a derrick, a weight indicator box, a large hook, a power tongs, a first data acquisition device and a second data acquisition device, all of which are mounted on a loading vehicle, wherein the hydraulic system includes a hydraulic power source and a first hydraulic pipeline connected to the hydraulic power source, the hydraulic power source is close to the cab of the loading vehicle, the first hydraulic pipeline is routed from the bottom surface of the vehicle chassis, extends through the vehicle chassis and is connected to the hydraulic actuator of the power tongs; the first data acquisition device is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline, and the pressure value of the hydraulic oil in the first hydraulic pipeline is consistent with the pressure value applied to the oil pipe by the power tongs; the steel rope wound on the steel rope winch is connected to the dead rope fixer via a large hook, and the second hydraulic pipeline is connected to the dead rope fixer The steel ropes on the device are connected in series, and the tension of the steel rope is converted into the pressure of the hydraulic oil in the second hydraulic pipeline through the dead rope fixer; the second data acquisition device is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline, and the pressure value of the hydraulic oil in the second hydraulic pipeline is consistent with the tension value on the large hook; the first data acquisition device and the second data acquisition device are both arranged in the weight indicator box, and the weight indicator box is arranged on the derrick, and the instrument in the weight indicator box displays the tension value on the large hook measured by the weight indicator; the first data acquisition device and the second data acquisition device periodically send the collected data to the upper computer, and the upper computer determines the tension value of the large hook and the pressure value of the power clamp according to the received data, and determines the operating status of the oilfield well repair rig according to the changes in the tension value of the large hook and the pressure value of the power clamp.

[0006] Optionally, the first data acquisition device is connected to the first hydraulic pipeline through a first pressure measuring hose; the first pressure measuring hose is connected to the vicinity of the liquid outlet interface or the liquid inlet interface of the first hydraulic pipeline, and the liquid outlet interface and the liquid inlet interface are both arranged at the rear end of the loading vehicle, and a first pressure sensor is arranged at the end of the first pressure measuring hose, and the first data acquisition device is electrically connected to the first pressure sensor, and the first pressure sensor is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline.

[0007] Optionally, the second data acquisition device is connected to the second hydraulic pipeline via a second pressure measuring hose, a second pressure sensor is provided at the end of the second pressure measuring hose, the second data acquisition device and the second pressure sensor are electrically connected, and the second pressure sensor is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline.

[0008] Optionally, the oilfield servicing machine operating system also includes a third hydraulic pipeline, which is connected to the first hydraulic pipeline in a branch manner and extends in a direction away from the power clamp, and the first data acquisition device is connected to the third hydraulic pipeline through a third pressure measuring hose; a third pressure sensor is provided at the end of the third pressure measuring hose, and the first data acquisition device and the third pressure sensor are electrically connected, and the third pressure sensor is used to collect the pressure of the hydraulic oil in the third hydraulic pipeline.

[0009] The embodiment of the present application further proposes a method for monitoring oilfield well repair operations, the method being based on the aforementioned oilfield well repair rig operation system, the method comprising: during the operation process, if the tension value of the large hook instantly increases from below a preset tension threshold, and the pressure value of the power clamp instantly increases from below a preset pressure threshold, then determining that the working state of the oilfield well repair rig is "lifting the oil pipe" or "lowering the oil pipe"; if it is determined that the working state of the oilfield well repair rig is "lifting the oil pipe" or "lowering the oil pipe", then calculating the number of times the oil pipe is lifted or lowered according to the number of times the tension value changes and the number of times the pressure value changes; during the operation process, if the tension value of the large hook instantly decreases from gradually increasing, then determining that the working state of the oilfield well repair rig is hitting the sand surface; if it is determined that the working state of the oilfield well repair rig is hitting the sand surface, then calculating the distance from the sand surface to the ground according to the tension value, wherein the relationship between the tension value F and the distance h1 from the sand surface to the ground is: F=(3.14×R1 2 -3.14×R2 2 )×h1×ρ×g; wherein, R1 is the outer diameter of the oil pipe, R2 is the inner diameter of the oil pipe, ρ is the density of the oil pipe, and g is the gravitational acceleration; the number of times the oil pipe is lifted, the number of times the oil pipe is lowered, and the distance from the sand surface to the ground are bound to the name of the construction oil well and displayed on the display screen.

[0010] Optionally, if the tension value fluctuates according to a preset rule, it is determined that the working state of the oilfield well repair equipment is that the oil pipe is unstuck; if it is determined that the working state of the oilfield well repair equipment is unstuck, the maximum value F within the fluctuation range of the tension value rule is max , calculate the distance from the stuck point to the ground, where the maximum pulling force value F max The relationship between the depth h2 from the stuck point to the ground is: max =(3.14×R1 2 -3.14×R2 2 )×h2×ρ×g.

[0011] Optionally, if the pressure value of the power tongs instantly increases from below a preset pressure threshold and then the tension value of the big hook instantly increases from below a preset tension threshold, the working state of the oilfield well repairing equipment is determined to be "lifting the oil pipe", and the number of times the oil pipe is lifted is updated; if the tension value of the big hook instantly increases from below a preset tension threshold and then the pressure value of the power tongs instantly increases from below a preset pressure threshold, the working state of the oilfield well repairing equipment is determined to be "lowering the oil pipe", and the number of times the oil pipe is lowered is updated.

[0012] Optionally, if the pulling force value of the large hook fluctuates within a preset range, and the pressure value of the power tongs also fluctuates within a preset range, it is determined that the working state of the oilfield workover rig is casing grinding and washing.

[0013] Optionally, if the tension value remains unchanged and the time during which the pressure value of the power clamp is lower than the preset pressure threshold is greater than a first preset time, it is determined that the working state of the oilfield workover rig is a shutdown state; based on the duration during which the pressure value is lower than the preset pressure threshold, the shutdown time and operating time of the oilfield workover rig are determined and displayed.

[0014] Optionally, if the tension value and the pressure value are not collected within the second preset time range, the working state of the oilfield workover rig is determined to be well change; according to the number of well changes of the oilfield workover rig, the number of oil wells serviced by the oilfield workover rig is determined and displayed.

[0015] The oilfield workover rig operating system proposed in the embodiment of the present application collects the pressure value of the power tongs and the tension value of the large hook by adding the first data acquisition device and the second data acquisition device, so that the operator can obtain the tension value of the large hook and the pressure value of the power tongs in an extremely convenient way, and timely discover the abnormal situation downhole and take measures according to the tension value of the large hook and the pressure value of the power tongs, thereby improving the safety of the operation. In addition, the first data acquisition device and the second data acquisition device of the present application are arranged in the weight indicator box, which can reduce the adverse effects of the external harsh environment and improve the structural stability of the oilfield workover rig operating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Below, the preferred embodiments of the present application will be further described in detail with reference to the accompanying drawings, wherein:

[0017] Figure 1 It is a structural schematic diagram of an oilfield workover rig operating system according to an embodiment of the present application;

[0018] Figure 2 yes Figure 1 An enlarged view of the structure at structure A shown;

[0019] Figure 3It is a schematic diagram of a monitoring panel according to an embodiment of the present application.

[0020] Description of reference numerals:

[0021] 100. Oilfield servicing rig operating system; 101. Hydraulic system; 102. Wire rope winch; 103. Dead rope fixer; 104. Derrick; 105. Weight indicator box; 106. Big hook; 107. Power tongs; 108. First data acquisition device; 109. Second data acquisition device; 110. Loading vehicle; 1012. First hydraulic pipeline; 1011. Hydraulic power source; 1102. Vehicle chassis; 112. Hydraulic actuator; 1021. Wire rope; 120. Oil pipe; 1051. Instrument; 1101. Cab; 1091. Second pressure measuring hose; 302. Third pressure measuring hose; 301. Third hydraulic pipeline; 135. Pulley block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In the following detailed description, reference may be made to the various specification drawings that are part of the present application and are used to illustrate specific embodiments of the present application. In the accompanying drawings, similar reference numerals describe substantially similar components in different figures. The various specific embodiments of the present application are described below in sufficient detail so that a person of ordinary skill in the art with relevant knowledge and skills in the art can implement the technical solutions of the present application. It should be understood that other embodiments may also be used or structural, logical or electrical changes may be made to the embodiments of the present application.

[0024] Figure 1 It is a structural schematic diagram of an oilfield workover rig operating system according to an embodiment of the present application. Figure 2 yes Figure 1 The structure of the structure A is shown in the enlarged view. Figure 1 and Figure 2As shown, the oilfield workover rig operating system 100 includes: a hydraulic system 101, a wire rope winch 102, a dead rope fixer 103, a derrick 104, a weight indicator box 105, a hook 106, a power tongs 107, a first data acquisition device 108 and a second data acquisition device 109, all of which are mounted on a loading vehicle 110, wherein the hydraulic system 101 includes a hydraulic power source 1011 and a first hydraulic pipeline 1012 connected to the hydraulic power source, the hydraulic power source 1011 is close to the cab 1101 of the loading vehicle 110, and the first hydraulic pipeline 1012 is routed from the bottom surface of the vehicle chassis 1102, extends through the vehicle chassis 1102, and is connected to the hydraulic actuator 112 of the power tongs 107.

[0025] The first data acquisition device 108 is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline 1012. The pressure value of the hydraulic oil in the first hydraulic pipeline 1012 is consistent with the pressure value applied to the oil pipe 120 by the power tongs 107. The steel rope 1021 wound on the steel rope winch 102 is connected to the dead rope fixer 103 via the big hook 106. In some embodiments of the present application, optionally, the steel rope 1021 is connected to the dead rope fixer 103 via the big hook 106 and the pulley block 135. The second hydraulic pipeline (not shown in the figure) is connected in series with the steel rope 1021 on the dead rope fixer 103, and the tension of the steel rope 1021 is converted into the pressure of the hydraulic oil in the second hydraulic pipeline through the dead rope fixer 103. The second data acquisition device 109 is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline. The pressure value of the hydraulic oil in the second hydraulic pipeline is consistent with the tension value on the big hook 106.

[0026] The first data acquisition device 108 and the second data acquisition device 109 are both arranged in the weight indicator box 105, and the weight indicator box 105 is arranged on the derrick 104. The meter 1051 in the weight indicator box 105 displays the tension value on the hook measured by the weight indicator. The first data acquisition device 108 and the second data acquisition device 109 periodically send the collected data to the upper computer (not shown in the figure), and the upper computer determines the tension value of the hook and the pressure value of the power clamp according to the received data, and determines the operation status of the oilfield workover rig according to the changes of the tension value of the hook and the pressure value of the power clamp.

[0027] The oilfield well repair system proposed in the embodiment of the present application collects the pressure value of the power tongs and the tension value of the large hook by adding the first data acquisition device and the second data acquisition device, so that the operator can obtain the tension value of the large hook and the pressure value of the power tongs in an extremely convenient way, and timely discover the abnormal situation downhole and take measures according to the tension value of the large hook and the pressure value of the power tongs, thereby improving the safety of the operation. In addition, the first data acquisition device and the second data acquisition device of the present application are arranged in the weight indicator box to play a protective role, preventing the harsh environment on site from having adverse effects on the first data acquisition device and the second data acquisition device.

[0028] In some embodiments of the present application, optionally, the first data acquisition device 108 is connected to the first hydraulic pipeline 1012 through a first pressure measuring hose (not shown in the figure). The first pressure measuring hose is connected to the liquid outlet interface or the vicinity of the liquid inlet interface of the first hydraulic pipeline 1012, and the liquid outlet interface and the liquid inlet interface are both arranged at the rear end of the loading vehicle 110. A first pressure sensor is arranged at the end of the first pressure measuring hose, and the first data acquisition device is electrically connected to the first pressure sensor, and the first pressure sensor is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline.

[0029] In some embodiments of the present application, optionally, the second data acquisition device 109 is connected to a second hydraulic pipeline (not shown in the figure) through a second pressure measuring hose 1091, a second pressure sensor is provided at the end of the second pressure measuring hose 1091, the second data acquisition device is electrically connected to the second pressure sensor, and the second pressure sensor is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline.

[0030] In some embodiments of the present application, optionally, the oilfield workover rig operation system 100 further includes a third hydraulic pipeline 301, the third hydraulic pipeline 301 is connected to the first hydraulic pipeline 1012 in a branch manner, and extends in a direction away from the power clamp 107, the first data acquisition device 108 is connected to the third hydraulic pipeline 301 through a third pressure measuring hose 302; a third pressure sensor is provided at the end of the third pressure measuring hose 301, the first data acquisition device and the third pressure sensor are electrically connected, and the third pressure sensor is used to collect the pressure of the hydraulic oil in the third hydraulic pipeline. In some embodiments of the present application, optionally, the third hydraulic pipeline 301 and the first hydraulic pipeline 1012 are connected through a three-way joint (not shown in the figure).

[0031] The embodiment of the present application further provides a method for monitoring oilfield well repair operations. The method is based on the aforementioned oilfield well repair machine operation system 100. The method for monitoring oilfield well repair operations includes the following steps:

[0032] S101: During the operation, if the tension value of the hook 106 increases from below a preset tension threshold value, and the pressure value of the power clamp 107 increases from below a preset pressure threshold value, it is determined that the working state of the oilfield workover rig is "lifting the tubing" or "lowering the tubing".

[0033] S102: if it is determined that the working state of the oilfield workover rig is "lifting the oil pipe" or "lowering the oil pipe", the number of times the oil pipe is lifted or lowered is calculated according to the number of times the tension value changes and the number of times the pressure value changes;

[0034] S103: During the operation, if the pulling force value of the hook 106 decreases instantly from gradually increasing, it is determined that the working state of the oilfield workover rig is hitting the sand surface;

[0035] S104: If it is determined that the working state of the oilfield workover rig is to hit the sand surface, the distance from the sand surface to the ground is calculated according to the tension value, wherein the relationship between the tension value F and the distance h1 from the sand surface to the ground is: F = (3.14 × R12-3.14 × R22) × h1 × ρ × g; wherein R1 is the outer diameter of the oil pipe, R2 is the inner diameter of the oil pipe, ρ is the density of the oil pipe, and g is the acceleration of gravity;

[0036] S105: The number of times the oil pipe is pulled up, the number of times the oil pipe is lowered, and the distance from the sand surface to the ground are bound to the name of the construction oil well and displayed.

[0037] In the embodiment of the present application, the oilfield workover rig is a general term for those parts of the oilfield workover operation system that do not include the first data acquisition device and the second data acquisition device. In the oilfield workover rig operation system, the first data acquisition device 108 is used to collect the tension value of the hook 106 at a first preset frequency (for example: once every 5 seconds). If the tension value of the hook 106 increases from approximately 0 KN instantly, and the pressure value of the power tongs 107 used to tighten the oil pipe also increases from approximately 0 instantly, it can be determined that the working state of the oilfield workover rig is "lowering the oil pipe", and one "lowering the oil pipe" can be recorded. If the pressure of the power tongs 107 increases from approximately 0 instantly, and the tension value of the hook 106 increases from approximately 0 KN instantly, it can be determined that the working state of the oilfield workover rig is "lifting the oil pipe", and it can be recorded as one "lifting the oil pipe".

[0038] In the process of oilfield well repair, if the tension value of the big hook 106 decreases instantly from gradually increasing, it is determined that the working state of the oilfield well repair machine is hitting the sand surface. In the process of lowering the oil pipe, the tension value gradually increases. When the oil pipe hits the sand surface, the tension value of the big hook 106 decreases significantly instantly on the original basis, similar to a sudden change. In this way, the distance from the sand surface to the ground can be determined based on the tension value and the inner and outer diameters and density of a single oil pipe. In some embodiments of the present application, the density ρ of the oil pipe is 7900kg / m3.

[0039] The collected data of the number of times the oil pipe is lifted and lowered, and the distance from the sand surface to the ground are bound to the name of the construction well and displayed. This allows the number of times the oil pipe is lowered or lifted for the construction well to be determined, as well as the working status determined by the tension and pressure values ​​of the power clamp, and the distance from the sand surface to the ground. This allows the construction process to be monitored and managed even if you are not at the construction site.

[0040] By adopting the embodiments of the present application, the working status of the oilfield workover rig can be determined based on the collected data of the hook tension and the power clamp, so that more refined and digital management of the oilfield workover process can be achieved, and the informatization level of the oilfield workover process is improved. Construction personnel can monitor the construction progress and quality based on the data, so as to understand the construction progress more accurately and improve the construction quality and production safety of the oilfield workover.

[0041] In some embodiments of the present application, optionally, if the tension value fluctuates according to a preset rule, it is determined that the working state of the oilfield workover rig is that the tubing is unstuck; if it is determined that the working state of the oilfield workover rig is unstuck, the distance from the stuck point to the ground is calculated based on the maximum value Fmax within the regular fluctuation range of the tension value, wherein the relationship between the maximum tension value Fmax and the depth h2 from the stuck point to the ground is: Fmax = (3.14×R12-3.14×R22)×h2×ρ×g.

[0042] In the process of lifting the oil pipe 120, a stuck point is often encountered, which makes the oil pipe 120 unable to be lifted smoothly. At this time, the oil pipe needs to be repeatedly lowered and lifted, so it can be observed that the tension value of the big hook fluctuates regularly. In this way, if the tension value of the big hook 106 collected by the first data acquisition device 108 fluctuates regularly, it can be determined that the working state of the oilfield well repair machine operation system 100 is unstuck, that is, the stuck state is released. At the same time, the depth from the stuck point to the ground can be determined based on the maximum tension value collected. In this way, when the oil pipe 120 is lifted next time, more attention can be paid to this position, which can reduce the number of up and down pulling and improve work efficiency.

[0043] In some embodiments of the present application, optionally, if the pressure value of the power tongs 107 instantly increases from below a preset pressure threshold and then the tension value of the hook 106 instantly increases from below a preset tension threshold, the working state of the oilfield servicing rig is determined to be "lifting the oil pipe", and the number of times the oil pipe is lifted is updated; if the tension value of the hook 106 instantly increases from below a preset tension threshold and then the pressure value of the power tongs 107 instantly increases from below a preset pressure threshold, the working state of the oilfield servicing rig is determined to be "lowering the oil pipe", and the number of times the oil pipe is lowered is updated.

[0044] In order to further determine whether the working state of the oilfield workover rig is "lifting the oil pipe" or "lowering the oil pipe", it is necessary to determine whether the tension value of the big hook 106 increases first or the pressure value of the power tongs 107 increases first. If the tension value of the big hook 106 increases first, it can be determined that the oil pipe is being lowered, that is, the big hook 106 lifts the oil pipe 120 and tightens the end of the oil pipe 120 to the end of the installed oil pipe. If the pressure of the power tongs 107 increases first, it can be determined that the oil pipe is being lifted, that is, the connection of the oil pipe 120 is first loosened, and then lifted by the big hook 106. In this way, the collected data can be bound to the time point, and the oilfield workover rig can be further determined whether it is "lifting the oil pipe" or "lowering the oil pipe" according to the order of the collected tension value and pressure value.

[0045] In some embodiments of the present application, optionally, if the tension value of the big hook 106 fluctuates within a preset range, and the pressure value of the power tongs 107 also fluctuates within a preset range, it is determined that the working state of the oilfield workover rig is casing grinding and washing.

[0046] During the operation of the oilfield servicing machine, the sludge, dirt and sediment in the oil well need to be cleaned. Moreover, after a period of use, the oil pipe will deposit some solid particles, mud or other impurities, and these attachments will affect the cleanliness and integrity of the oil pipe. A casing is sleeved between the inner wall of the oil well and the outer wall of the oil pipe. During the sleeve grinding and washing process, the impurities and residues attached to the surface of the oil pipe can be stirred and removed by constantly rotating the oil pipe, thereby ensuring the effect of casing grinding. In the embodiments of the present application, the working status of the oilfield servicing machine can be determined by monitoring the fluctuations of the large hook tension value and the power clamp tension value within a preset range, so that the construction progress can be understood, and the working process of the oilfield servicing machine can be arranged and adjusted more finely.

[0047] Optionally, according to the method of an embodiment of the present application, if the tension value remains unchanged and the time when the pressure value of the power clamp 107 is lower than the preset pressure threshold is greater than a first preset time, the working state of the oilfield servicing rig is determined to be a shutdown state; the shutdown time and operating time of the oilfield servicing rig are determined and displayed based on the duration of the pressure value being lower than the preset pressure threshold.

[0048] In the embodiment of the present application, if the tension value of the hook 106 remains unchanged, for example, the tension value of the hook 106 is approximately 0 KN for more than 30 minutes, and the pressure value of the power tongs 107 is less than 0 MPa for more than 30 minutes, it can be determined that the oilfield workover rig is in a shutdown state. If the pressure value and the tension value are not detected in this state, it can be determined that the oilfield workover rig is in operation.

[0049] Optionally, according to the method of the embodiment of the present application, if the tension value and the pressure value are not collected within the second preset time range, the working state of the oilfield workover rig is determined to be a well change; the number of oil wells serviced by the oilfield workover rig is determined and displayed according to the number of well changes of the oilfield workover rig. In the embodiment of the present application, if the first type of data acquisition machine and the second type of data acquisition machine do not upload the large hook tension value and the pressure value of the power clamp for more than 3 hours, it can be determined that the oilfield workover rig is in the state of changing the oil well.

[0050] In some embodiments of the present application, the data collected by the first data acquisition device 108 and the second data acquisition device 109 may be integrated and then displayed on a monitoring panel in the form of a table or a curve. Figure 3 Schematic diagram of a monitoring panel according to an embodiment of the present application. Figure 3 As shown in the figure, the tension value is used as the ordinate parameter, and the abscissa parameter represents the time point. By drawing according to the collected data, the working status of the oilfield well repair equipment can be determined. Figure 3 The tension value shown is at B, where the tension value begins to be greater than the tension threshold, and then the tension value remains within a certain range, and then slowly decreases to near the tension threshold, so that it can be determined that this process is the work of pulling the oil pipe. In this way, management personnel can monitor the construction progress at the original oil production site, reduce the adverse safety impact caused by personnel entering the well repair site, and in addition, it can also improve the information management level of oilfield well repair, so that the oilfield well repair process can be effectively monitored.

[0051] The above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the scope of the present application. Therefore, all equivalent technical solutions should also fall within the scope disclosed in the present application.

Claims

1. An oilfield workover rig operating system, characterized in that: include: The hydraulic system, wire rope winch, dead rope fixer, derrick, weight indicator box, big hook, power clamp, first data acquisition equipment and second data acquisition equipment are all mounted on the loading truck, among which, The hydraulic system includes a hydraulic power source and a first hydraulic pipeline connected to the hydraulic power source, the hydraulic power source is close to the cab of the loaded vehicle, the first hydraulic pipeline is routed from the bottom surface of the vehicle chassis, extends through the vehicle chassis and is connected to the hydraulic actuator of the power tongs; the first data acquisition device is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline, and the pressure value of the hydraulic oil in the first hydraulic pipeline is consistent with the pressure value applied by the power tongs on the oil pipe; The steel rope wound on the steel rope winch is connected to the dead rope fixer via a large hook, the second hydraulic pipeline is connected in series with the steel rope on the dead rope fixer, and the tension of the steel rope is converted into the pressure of the hydraulic oil in the second hydraulic pipeline via the dead rope fixer; the second data acquisition device is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline, and the pressure value of the hydraulic oil in the second hydraulic pipeline is consistent with the tension value on the large hook; The first data acquisition device and the second data acquisition device are both arranged in the weight indicator box, the weight indicator box is arranged on the derrick, and the instrument in the weight indicator box displays the tension value on the big hook measured by the weight indicator; The first data acquisition device and the second data acquisition device periodically send the collected data to the host computer, and the host computer determines the tension value of the large hook and the pressure value of the power clamp according to the received data, and determines the operating status of the oilfield workover rig according to the changes in the tension value of the large hook and the pressure value of the power clamp.

2. The oilfield workover rig operating system according to claim 1, characterized in that: The first data acquisition device is connected to the first hydraulic pipeline through a first pressure measuring hose; the first pressure measuring hose is connected to the vicinity of the liquid outlet interface or the liquid inlet interface of the first hydraulic pipeline, and the liquid outlet interface and the liquid inlet interface are both arranged at the rear end of the loading vehicle, and a first pressure sensor is arranged at the end of the first pressure measuring hose, and the first data acquisition device is electrically connected to the first pressure sensor, and the first pressure sensor is used to collect the pressure of the hydraulic oil in the first hydraulic pipeline.

3. The oilfield workover rig operation system according to claim 1, characterized in that: The second data acquisition device is connected to the second hydraulic pipeline through a second pressure measuring hose, a second pressure sensor is provided at the end of the second pressure measuring hose, the second data acquisition device and the second pressure sensor are electrically connected, and the second pressure sensor is used to collect the pressure of the hydraulic oil in the second hydraulic pipeline.

4. The oilfield workover rig operating system according to claim 1, characterized in that: The oilfield workover rig operation system further includes a third hydraulic pipeline, which is connected to the first hydraulic pipeline in a branch manner and extends in a direction away from the power clamp, and the first data acquisition device is connected to the third hydraulic pipeline through a third pressure measuring hose; A third pressure sensor is disposed at the end of the third pressure measuring hose, the first data acquisition device is electrically connected to the third pressure sensor, and the third pressure sensor is used to collect the pressure of the hydraulic oil in the third hydraulic pipeline.

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