In-hole calibration method of horizontal well communication equipment
A horizontal well and equipment technology, applied in the field of drilling, can solve problems such as abnormal working status and connection failure, and achieve the effect of ensuring successful connection and reliability
Active Publication Date: 2017-02-15
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the harsher and more complex working environment in the well than on the ground, coupled with some accidental factors, the connection equipment may go into the well after being checked on the ground, and the working status may be abnormal, resulting in connection failure.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0018] The calibration method in the well of horizontal well communication equipment provided by the present invention includes:
[0019] Step 102, obtaining the depth range h of the location of the FRP casing in the vertical well is a≤h≤b;
[0020] Step 104, lowering the communication equipment to a depth of b in the vertical well;
[0021] Step 106, lifting the communication device to a depth of a at a speed of 1 m / min;
[0022] Step 108, collect the magnetic induction intensity at the location of the connected device every time it is lifted by 0.5m, and compare the collected magnetic induction intensity value with the standard magnetic induction intensity value at the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an in-well proofreading method for horizontal well communicating equipment. The method comprises the following steps: (102) acquiring depth range of the position of a glass reinforced plastic sleeve pipe h in a vertical well, wherein h is larger than or equal to a and smaller than or equal to b; (104) placing the communicating equipment down to the depth of b in the vertical well; (106) lifting the communicating equipment to the depth of a at a speed of 1m / min; (108) collecting magnetic induction density of the communicating equipment at the position when the communicating equipment is lifted by 0.5 m each time; comparing the collected magnetic induction density values with standard magnetic induction density values at corresponding positions to obtain position of which the difference of the values is minimal to be the optimal operating position of the communicating equipment. Through the method, reliability of the equipment can be further improved; the horizontal well is ensured to be communicated successfully better.
Description
technical field [0001] The invention relates to the technical field of drilling, in particular to an in-well calibration method for horizontal well communication equipment. Background technique [0002] my country is a country with large coal resources in the world, rich in coalbed methane resources, with a resource volume of 36.81×10 12 m 3 , has broad development prospects. At present, in the development of coalbed methane in my country, vertical wells play a dominant role, but the low output of a single well and high development costs restrict the increase of reserves and production of coalbed methane, and bring severe challenges to the efficient and economical development of coalbed methane. Horizontal wells are the key to realize It is an important way for the efficient development of coalbed methane. In the future, a mode will be formed in which horizontal wells will be the mainstay and vertical wells will be supplemented. With the progress of CBM development, new ty...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
Inventor 赵世军李浩王爱玲王风锐王锐谭天宇
Owner BC P INC CHINA NAT PETROLEUM CORP