Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic logging method for horizontal well rod and pipe conveying

A horizontal well and well logging technology, which is applied in wellbore/well components, measurement, earthwork drilling and production, etc. It can solve problems such as complicated tripping process, inability to test liquid production profile, and uncertainty of whether the testing instrument is out of the protective body.

Active Publication Date: 2018-04-03
PETROCHINA CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent literature "Coiled Tube Horizontal Well Logging Technology and Device" Publication No.: CN 101382069A, Publication Date: March 11, 2009, using coiled tubing as a delivery tool for logging downhole instruments, but for a large number of machine mining Horizontal wells are currently unable to perform liquid production profile testing under normal production conditions
[0004] Chinese patent document "Technical Method for Measuring Fluid Production Profile by Gas Lift Method in Mechanically Mined Horizontal Wells" Publication No.: CN101403292A, Publication Date: April 8, 2009, adopts the gas lift production method, drives the test instrument with a tractor, "mainly solves the current Some horizontal wells cannot be tested for fluid production profiles under normal production conditions”
The disadvantages are that the test cable is located outside the oil pipe, not only the whole tripping process is complicated, but also because of the leakage of the swabbing tool and the uncertainty of whether the test instrument is out of the protection body, it cannot reflect the normal production status of the mechanically produced horizontal well

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic logging method for horizontal well rod and pipe conveying
  • Dynamic logging method for horizontal well rod and pipe conveying
  • Dynamic logging method for horizontal well rod and pipe conveying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Embodiment 1: The present invention will be further described in detail by taking a logging process rod string for dynamic logging conveyed by a horizontal well rod and pipe as an example.

[0095] refer to figure 1 , Figure 13 . Horizontal well pipe and pipe conveying dynamic logging process rod string, composed of horizontal well pipe and pipe conveying dynamic logging process string, horizontal well pipe and pipe conveying dynamic logging process rod string; horizontal well pipe and pipe conveying dynamic logging process rod string It is composed of the upper half of the rod column for the dynamic logging process of horizontal well pipe and pipe transportation, and the lower half of the rod string for the dynamic logging process of horizontal well pipe and pipe transportation;

[0096] Horizontal well rod and pipe transport dynamic logging process string, mainly composed of tubing 9, disconnector, tubing anti-jack device, packer, horizontal well test hollow pump, ...

Embodiment 2

[0106] Embodiment 2: as figure 2 As shown, the horizontal well logging tappet is mainly composed of a rod body, a cable plug assembly 403, a pressure cap 404, a cable 405, a cable socket assembly 407, a retaining ring 409, and a protective wire 401 and a protective cap 410 used in storage and transportation;

[0107] The body of rod is 38 millimeters in outer diameter, 25 millimeters in inner diameter, 8000 millimeters in length by the body 406 of cylinder shape, and the upper connector 402 of body 406 and cylinder shape, the lower connector 408 of body 406 and cylinder shape are welded together, body 406, upper connection The centerlines of the body 402 and the lower connecting body 408 are on the same straight line;

[0108] The upper connecting body 402 has a central hole, the central hole of the upper connecting body 402 is a stepped central hole, the upper central hole of the upper connecting body 402 has a 11 / 16 sucker rod internal thread, and the upper end thread of th...

Embodiment 3

[0118] Embodiment 3: Taking a horizontal well logging suspension unlocking device as an example, the present invention will be further described in detail.

[0119] refer to Figure 5 , the horizontal well logging suspension unlocking device is composed of a suspension anti-top casing 501 and a hanger 502, the hanger 502 can be suspended on the suspension anti-top casing 501, and can realize suspension and unlocking;

[0120] refer to Figure 6 , the suspension anti-top shell 501 is composed of a coupling 50101, an anti-top body 50102 and a suspension body 50103. 7 / 8 The inner thread of the oil pipe is connected with the anti-cap body 50102 through threads; the outer diameter of the anti-cap body 50102 is The length is 2350 mm, and its top has a chamfer of 30°, forming the guide channel A; below it is the upper docking channel B, with an inner diameter of 42 mm and a length of 200 mm; below the upper docking channel B is the suspension cavity D, with an inner diameter of...

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

No PUM Login to View More

Abstract

The invention provides a dynamic well logging method for horizontal well pipe transportation. The well logging method includes the following steps: pulling out the original well pipe string, draining the well, and washing the well; sending the lower half of the rod string of the horizontal well pipe to the dynamic logging process into the casing; The rod is connected to the required length, and the uppermost tappet is connected to the hanger of the suspension unlocking device, the anti-jacking device of the anti-jack unlocking device, and the male head of the cable docking device, and the downhole instrument centralizer is connected to the two ends of the downhole instrument; Rod and pipe conveying dynamic logging process pipe string running into the casing: set packer, anchor the tubing anti-jack device, the pipe string is disengaged from the disconnector; install the wellhead guide device; use the cable to run into the horizontal well from the tubing The upper part of the rod column in the dynamic logging process of rod pipe transportation: the cable head is connected to the female head of the cable docking device, and the male and female heads of the cable docking device are connected; the liquid is drained by swabbing; the test is carried out by lifting the cable; the cable and tappet are pulled out , Logging instruments.

Description

technical field [0001] The invention relates to a dynamic logging method for horizontal well rod and pipe transportation, belonging to the field of horizontal well logging in oil fields. Background technique [0002] At present, domestic and foreign horizontal well production logging generally adopts three methods: coiled tubing transportation, tractor transportation, and hydraulic transportation. Existing tubing transportation and hydraulic transportation need to pump liquid, and the liquid enters the formation, which directly affects the test results, and the input cost of tractor transportation and coiled tubing transportation is relatively high. It is urgent to find a testing process technology like vertical well logging. [0003] Chinese patent literature "Coiled Tube Horizontal Well Logging Technology and Device" Publication No.: CN 101382069A, Publication Date: March 11, 2009. Coiled tubing is used as a delivery tool for well logging downhole instruments, but for a l...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B49/00
Inventor 张宝辉杨永祥章沙莉王凤清李向齐胡书宝王一鸣郭吉民
Owner PETROCHINA CO LTD