Methods of drilling and consolidating subterranean formation particulates
a technology of subterranean formation and subsurface particulates, which is applied in the direction of wellbore/well accessories, separation processes, sealing/packing, etc., can solve the problems of increasing reducing the available diameter of a well, and sensitivity of the well wall, so as to increase the cost of installing a well
Inactive Publication Date: 2007-01-25
HALLIBURTON ENERGY SERVICES INC
View PDF39 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The method effectively stabilizes weakly consolidated formations during drilling and production, preventing collapse and minimizing the need for separate sand control operations, thus reducing costs and maintaining well bore diameter.
Problems solved by technology
Often, well bores are drilled into weakly consolidated formations wherein the walls of the well bore may be sensitive to degradation by the force of mobile fluids within the formation.
While gravel packs have been successfully used to control the migration of formation sands, their placement generally reduces the available diameter of a well bore due to the physical size of the screen and the resulting gravel annulus.
While the sand control methods mentioned above are routinely used in the completion of well bores, particularly those drilled into weakly consolidated formations, they increase the expense of installing a well bore by requiring separate steps to drill the well bore and then to control the formation sands.
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] The present invention describes improved methods for drilling and treating well bores. More particularly, the present invention relates to improved methods for drilling well bores penetrating producing zones while controlling formation particulates.
[0011] In some embodiments of the methods of the present invention, a well bore is drilled with a drilling composition comprising a drilling fluid and a consolidating material. The consolidating material is allowed to penetrate into the formation and substantially cure, thus consolidating the formation sands along the wall of the well bore. The methods of the present invention provide, inter alia, a means for stabilizing weakly consolidated formations surrounding a well bore during drilling, preventing the formation from collapsing during production, and producing through the treated interval.
[0012] Drilling fluids suitable or use in the present invention may be water-based fluids or oil-based invert emulsion fluids. Essentially ...
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
| Property | Measurement | Unit |
|---|---|---|
| temperature | aaaaa | aaaaa |
| temperature | aaaaa | aaaaa |
| temperature | aaaaa | aaaaa |
Login to View More
Abstract
The present invention relates to improved methods for drilling well bores penetrating producing zones while controlling formation particulates. Some embodiments of the present invention provide methods of drilling a well bore into a subterranean formation comprising the steps of providing a drilling composition comprising a drilling fluid and a consolidating material; and, using the drilling composition while drilling the well bore and allowing the consolidating material in the drilling composition to penetrate into the walls of the well bore.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional application of commonly-owned U.S. patent application Ser. No. 10 / 650,065, filed Aug. 26, 2003, entitled “Methods of Drilling and Consolidating Subterranean Formation Particulates,” by Philip D. Nguyen, which is incorporated by reference herein for all purposes.BACKGROUND OF THE INVENTION [0002] The present invention describes improved methods for drilling and treating well bores. More particularly, the present invention relates to improved methods for drilling well bores penetrating producing zones while controlling formation particulates. [0003] Often, well bores are drilled into weakly consolidated formations wherein the walls of the well bore may be sensitive to degradation by the force of mobile fluids within the formation. Often, such well bores are subjected to some form of sand control operation such as gravel packing to reduce the migration of unconsolidated formation particulates. One common gr...
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 & AuthorityApplications(United States)
IPC IPC(8): E21B21/00C09K8/12C09K8/508C09K8/575E21B43/02
CPCC09K8/12C09K8/5751C09K8/508
InventorNGUYEN, PHILIP D.
OwnerHALLIBURTON ENERGY SERVICES INC