Formation tester body structure

Abstract

The utility model relates to the technical field of formation tester, disclose formation tester main part structure, including main staff, the left end of main staff's back side is provided with protection box, the top of protection box is provided with knob, the bottom fixed connection of knob has connecting rod, the bottom fixed connection of connecting rod has screw rod, the top rotation of screw rod is connected with semicircle snap ring no.

Description

TECHNICAL FIELD

[0001] The utility model relates to formation tester technical field especially relates to formation tester main part structure. BACKGROUND

[0002] Formation tester is an important equipment for oil and gas exploration and development field, can directly sample formation fluid and obtain formation pressure related parameters in the drilling process and after well completion, through accurate measurement pressure of different depth formation, can analyze the connectivity of formation, fluid property and distribution condition, help geologist and engineer judge the production capacity of formation and forecast oil and gas reserves, provide key basis for subsequent oil reservoir evaluation, development plan formulation, effectively reduce exploration and development risk, improve resource exploitation efficiency.

[0003] Formation tester main part structure is mainly composed of packer, test valve, pressure measuring system, fluid sampler etc., packer is used for sealing test layer section in wellbore, insulates other formation influence, test valve controls fluid flow, realizes open well flow and shut-in pressure recovery test operation, pressure measuring system accurately records pressure change in test process, provides key data for analyzing formation parameters, fluid sampler collects formation fluid sample at appropriate time, so that subsequent laboratory analyzes its property, these parts work together, make formation tester can effectively obtain formation pressure, fluid property some important information, provide key basis for oil and gas field exploration and development, in the use process, because wellbore is irregular, well wall has crack or scaling condition, and cannot realize good sealing, influence the accuracy of test result, cannot truly reflect the pressure and fluid property of target formation, in prior art, adopt the test method of multiple packer combination to solve, but in the long-term use process, will cause the situation of falling off due to unstable connection, and then will influence work efficiency. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides formation tester main part structure, aims at improving the problem of long-term use process in prior art, will cause the situation of falling off due to unstable connection, and then will influence work efficiency.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: formation tester main part structure, including main rod, the rear side left end of main rod is provided with protection box, the top of protection box is provided with knob, the bottom of knob is fixedly connected with connecting rod, the bottom of connecting rod is fixedly connected with threaded rod, the top of threaded rod is rotatably connected with semicircle snap ring one, the bottom outside of threaded rod is screw connected with semicircle snap ring two, the bottom of threaded rod is provided with limit block.

[0006] As a further description of the above technical scheme:

[0007] The right side of the main rod is fixedly connected with a connecting column, and a connecting groove is formed in the right side of the connecting column.

[0008] As a further description of the above technical solution:

[0009] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0010] As a further description of the above technical solution:

[0011] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0012] As a further description of the above technical solution:

[0013] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0014] As a further description of the above technical solution:

[0015] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0016] As a further description of the above technical solution:

[0017] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0018] As a further description of the above technical solution:

[0019] The right top of the main rod is provided with a clamping groove one, and a clamping groove two is formed in the inside of the clamping groove one.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、 the utility model discloses, the main rod rear side left end is equipped with the protection box, and the top has the knob, and the knob is connected through the connecting rod and the threaded rod, and the rotation knob can make the threaded rod rotate, and the threaded rod top connects the semicircle snap ring one, and the bottom outside screw thread connects the semicircle snap ring two, and has the limit stop that prevents excessive movement, and the rotation adjustment knob adjusts the distance between snap ring one and snap ring two, and effectively clamps and fixes in the connecting place.

[0022] 2、 the utility model discloses, the main rod right side is connected with the connecting column, and its connecting groove is used for connecting with other components, and the clamping groove one and clamping groove two of the main rod top realize the stable connection of component, and the fixed ring of the main rod top end has multiple waist -shaped grooves, and the left side square groove and threaded groove one cooperate with the threaded component, and the installation of the device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective view of a main structure of a formation tester according to the present application is shown in Fig. 1.

[0024] Figure 2 A front view of the main structure of the formation tester according to the present application is shown in Fig. 2.

[0025] Figure 3 A sectional view of the main structure of the formation tester according to the present application is shown in Fig. 3.

[0026] Figure 4 A side view of the main structure of the formation tester according to the present application is shown in Fig. 4.

[0027] Figure 5 A partial structure split view of the main structure of the formation tester according to the present application is shown in Fig. 5.

[0028] Legend:

[0029] 1, main rod; 2, protection box; 3, knob; 4, connecting rod; 5, threaded rod; 6, semicircle clasp one; 7, semicircle clasp two; 8, limiting block; 9, connecting column; 10, connecting groove; 11, clamping groove one; 12, clamping groove two; 13, fixed ring; 14, waist-shaped groove; 15, square groove; 16, threaded groove one; 17, rectangular groove one; 18, threaded groove two; 19, rectangular groove two; 20, threaded groove three; 21, fixed groove; 22, mounting groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Reference Figure 1 , Figure 4 and Figure 5The utility model provides an embodiment: the main structure of formation tester, including main rod 1, the left end of main rod 1's rear side is provided with protection box 2, the top of protection box 2 is provided with knob 3, the bottom fixed connection of knob 3 has connecting rod 4, and rotating knob 3 drives connecting rod 4 to rotate, the bottom fixed connection of connecting rod 4 has screw rod 5, and then drive screw rod 5 to rotate, the top rotation of screw rod 5 is connected with semicircle snap ring one 6, the outside bottom screw joint of screw rod 5 has semicircle snap ring two 7, the bottom of screw rod 5 is provided with limit block 8, the right side fixed connection of main rod 1 has connecting column 9, and the right side of connecting column 9 is provided with connecting groove 10, and the right side top of main rod 1 is provided with clamping groove one 11, and the inside of clamping groove one 11 is provided with clamping groove two 12, can carry out clamping;

[0032] Specifically, the protection box 2 is arranged at the left end of the rear side of the main rod 1, the knob 3 is arranged at the top of the protection box 2, the bottom of the knob 3 is fixedly connected with the connecting rod 4, the bottom of the connecting rod 4 is connected with the screw rod 5, therefore, the rotation of the knob 3 will cause the rotation of the screw rod 5, the top end of the screw rod 5 is rotationally connected with the semicircle snap ring one 6, the bottom outside of the screw rod 5 is screw-connected with the semicircle snap ring two 7, and the bottom is provided with the limit block 8 for limiting the movement, when the knob 3 is rotated, the screw rod 5 is rotated, the semicircle snap ring two 7 is moved up and down along the screw thread of the screw rod 5 due to the screw connection with the screw rod 5, thereby adjusting the distance between the semicircle snap ring one 6 and the semicircle snap ring two 7, realizing the clamping and fixing functions, the limit block 8 prevents the semicircle snap ring two 7 from moving downward excessively, plays a limiting role, and ensures the clamping and fixing effect of the connection, the right side of the main rod 1 is provided with the connecting column 9 fixedly connected therewith, the right side of the connecting column 9 is provided with the connecting groove 10, in addition, the right side top of the main rod 1 is provided with the clamping groove one 11, the clamping groove one 11 is further provided with the clamping groove two 12 inside, to realize the clamping function.

[0033] Referring to Figure 1 and Figure 2 , the right side of the top end of the main rod 1 is provided with the fixing ring 13, a plurality of waist-shaped grooves 14 are equidistantly arranged on the right side of the fixing ring 13, to facilitate installation, the left side of the fixing ring 13 is provided with the square groove 15, the inside of the square groove 15 is provided with the screw groove one 16, to screw-connect other components;

[0034] Specifically, the fixing ring 13 is arranged at the top end of the right side of the main rod 1, a plurality of waist-shaped grooves 14 are equidistantly arranged on the right side of the fixing ring 13, to facilitate installation, the left side of the fixing ring 13 is provided with the square groove 15, the inside of the square groove 15 is further provided with the screw groove one 16, to realize the screw connection with other components.

[0035] Referring to Figure 1 , Figure 2 and Figure 3The outer wall of the main rod 1 is provided with a rectangular groove one 17 on the front side, and a threaded groove two 18 is arranged in the rectangular groove one 17, which can be connected. The outer wall of the main rod 1 is provided with a rectangular groove two 19 on the left side, and a threaded groove three 20 is arranged in the rectangular groove two 19, which can be better connected. The top left side of the main rod 1 is provided with a fixed groove 21, and a mounting groove 22 is arranged in the fixed groove 21, which can facilitate installation.

[0036] Specifically, the outer wall of the main rod 1 is provided with a rectangular groove one 17 on the front side, and a threaded groove two 18 is arranged in the rectangular groove one 17, which can be connected. The outer wall of the main rod 1 is provided with a rectangular groove two 19 on the left side, and a threaded groove three 20 is arranged in the rectangular groove two 19, which can be better connected. The top left side of the main rod 1 is provided with a fixed groove 21, and a mounting groove 22 is arranged in the fixed groove 21, which can facilitate installation operation.

[0037] Working principle: The rear left end of the main rod 1 is provided with a protection box 2, and the top of the protection box 2 is provided with a rotary knob 3. When the rotary knob 3 is rotated, since the bottom of the rotary knob 3 is fixedly connected with a connecting rod 4, and the bottom of the connecting rod 4 is fixedly connected with a threaded rod 5, the rotation of the rotary knob 3 will drive the threaded rod 5 to rotate. The top of the threaded rod 5 is rotatably connected with a semicircular clasp one 6, and the bottom outer side is threadedly connected with a semicircular clasp two 7, and the bottom is provided with a limiting block 8. When the rotary knob 3 is rotated, the threaded rod 5 rotates. Since the semicircular clasp two 7 is threadedly connected with the threaded rod 5, during the rotation of the threaded rod 5, the semicircular clasp two 7 moves up and down along the threads of the threaded rod 5, which can adjust the distance between the semicircular clasp one 6 and the semicircular clasp two 7, thereby realizing the function of clamping and fixing. The limiting block 8 can prevent the semicircular clasp two 7 from moving downward excessively, and has the function of limiting, and effectively clamping and fixing at the connection;

[0038] The right side of the main rod 1 is fixedly connected with a connecting column 9, and the connecting groove 10 on the right side of the connecting column 9 can be used for connecting or adapting with other components. The clamping groove one 11 on the right side of the top of the main rod 1 and the clamping groove two 12 inside it are used to realize the function of clamping, and other components are inserted into the clamping groove one 11 and clamped further at the clamping groove two 12, so as to achieve the effect of stable connection and positioning. The plurality of waist-shaped grooves 14 on the fixing ring 13 on the right side of the top end of the main rod 1, and the square groove 15 on the left side of the fixing ring 13 and the threaded groove one 16 inside it are used to cooperate with components with threads. By screwing the components with corresponding threads, further fastening and connection is realized.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. The main structure of a formation tester, including a main rod (1), characterized in that: A protective box (2) is provided on the rear left end of the main rod (1). A knob (3) is provided on the top of the protective box (2). A connecting rod (4) is fixedly connected to the bottom of the knob (3). A threaded rod (5) is fixedly connected to the bottom of the connecting rod (4). A semi-circular retaining ring (6) is rotatably connected to the top of the threaded rod (5). A semi-circular retaining ring (7) is threadedly connected to the bottom outer side of the threaded rod (5). A limit block (8) is provided at the bottom of the threaded rod (5).

2. The main structure of the formation tester according to claim 1, characterized in that: A connecting column (9) is fixedly connected to the right side of the main rod (1), and a connecting groove (10) is provided on the right side of the connecting column (9).

3. The main structure of the formation tester according to claim 1, characterized in that: The main rod (1) has a locking groove 1 (11) on the top right side, and a locking groove 2 (12) is provided inside the locking groove 1 (11).

4. The main structure of the formation tester according to claim 1, characterized in that: A fixing ring (13) is provided on the right side of the top end of the main rod (1), and multiple waist-shaped grooves (14) are equally spaced on the right side of the fixing ring (13).

5. The main structure of the formation tester according to claim 4, characterized in that: A square groove (15) is provided on the left side of the fixing ring (13), and a threaded groove (16) is provided inside the square groove (15).

6. The main structure of the formation tester according to claim 1, characterized in that: The main rod (1) has a rectangular groove (17) on the front side of its outer wall, and a threaded groove (18) is formed inside the rectangular groove (17).

7. The main structure of the formation tester according to claim 1, characterized in that: A rectangular groove 2 (19) is provided on the left side of the outer wall of the main rod (1), and a threaded groove 3 (20) is provided inside the rectangular groove 2 (19).

8. The main structure of the formation tester according to claim 1, characterized in that: A fixing groove (21) is provided on the top left side of the main rod (1), and an installation groove (22) is provided inside the fixing groove (21).

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