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

Efficient well completion method for sidetrack horizontal well

A technology for sidetracking horizontal wells and sidetracking, applied in drilling equipment and methods, drilling equipment, directional drilling, etc., can solve the problems of insufficient precision control, long construction period, short oil well life, etc., to ensure reliability, shorten the The effect of reducing the construction period and operating costs

Inactive Publication Date: 2015-01-28
CNPC GREATWALL DRILLING ENG
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the deficiencies of the existing sidetracking horizontal well track accuracy control is not enough, the construction period is too long, the construction cost is too high, and the life of the oil well is short

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
  • Efficient well completion method for sidetrack horizontal well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An efficient completion method for sidetracking horizontal wells, the method steps are as follows:

[0014] 1. The sidetracking integrated casing windowing tool is used to open the casing window. The sidetracking integrated casing windowing tool is the tool described in the patent No. 200420030616.5. The sidetracking integrated casing windowing tool Go down to the window design position and hold the pressure setting, press down and shear the connecting pin while holding the pressure for the second time to realize the separation of the milling cone and the whipstock, and then directly open the window. After opening and repairing the window, Drilling while drilling;

[0015] 2. After successfully opening the window, use geo-tracking and steering technology to complete the drilling of the deflection section and horizontal section of the sidetracking horizontal well;

[0016] a. The trajectory optimization design and control method of the sidetracking horizontal well deflection s...

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 relates to the technical field of oil-gas field exploration and development, in particular to an efficient well completion method for a sidetrack horizontal well. The method comprises the following steps: 1, performing casing windowing by adopting an integrated sidetrack well casing windowing tool, namely lowering the integrated sidetrack well casing windowing tool to a design windowing position for pressure-building packing, downwards pressing shear connecting dowels at the same time of secondary pressure building, directly performing windowing after a tapered mill is separated from a whipstock, and performing drilling after a window is formed and repaired, wherein the integrated sidetrack well casing windowing tool is a tool recorded in patent with the patent number of 200420030616.5. According to the efficient well completion method, the trajectory control accuracy is improved, the well completion quality of the sidetrack horizontal well is improved, the service life of the sidetrack horizontal well is prolonged, the drilling construction speed is effectively increased, the construction period is shortened, and the operation cost is lowered.

Description

Technical field: [0001] The invention relates to the technical field of oil and gas field exploration and development, in particular to an efficient completion method for sidetracking horizontal wells. Background technique: [0002] Sidetracking horizontal wells are based on sidetracking, horizontal wells, and slim hole drilling, combined with windowing sidetracking, horizontal well orientation, small hole rock carrying and other technologies to form a new type of oil production technology, is the current old oil area The effective technical means for developing and increasing reserves and production of low-efficiency oil and gas reservoirs is also the best way to reduce mining costs, increase oil recovery, and use unknown reserves. [0003] Petroleum drilling technology continues to develop. Over time, some problems have been gradually exposed in the application of sidetracking horizontal wells, mainly manifested in insufficient trajectory accuracy control, excessive construction ...

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 Applications(China)
IPC IPC(8): E21B29/06E21B7/04E21B7/28E21B33/13
CPCE21B7/04E21B7/046E21B7/06E21B7/28E21B33/13
Inventor 李壮王成业席博夏方杰夏泊洢高清春冯悦刚吴兴国丁文正陈思路徐家年曹生雷鉴暄
Owner CNPC GREATWALL DRILLING ENG