機械摩阻降幅超40% EasyReach輕松潤滑大位移井

Baker Hughes EasyReach? extended-reach coiled tubing lubricant is a mechanical friction reducer that helps coiled tubing gain access to long wellbores that were previously unreachable, even with conventional coiled tubing lubricants.

EasyReach lubricant performance was extensively tested using a one-of-a-kind linear friction testing methodology that was first to effectively simulate real downhole coiled tubing conditions and environments. Testing was conducted with multiple fluid combinations, lubricant concentrations, and material types at varying temperatures. This first-in- industry testing yielded significantly more predictable field results than could previously be achieved with typical lab testing.

Data gathered during the extensive testing of the EasyReach lubricant is now used with the Baker Hughes CIRCA? pre-job and CIRCA RT on-the-job modeling software to effectively predict results in a wide range of coiled tubing environments. When included in the well design phase, EasyReach lubricant frees well designers to plan longer laterals that offer greater access to the payzone, increasing job efficiency and production potential.

EasyReach lubricant represents a step change over other available lubricants. It has been shown to drop the coefficient of friction (CoF) by between 40% and 60% from the standard value of 0.24, increasing lateral reach by as much as 120%. It is ideal for use in extended reach applications, and has been widely used with Baker Hughes OptiPort? hydraulic fracturing systems and the OptiPacker? compression set packer to isolate and treat laterals extending beyond 10,000 ft (3,050 m).

Field data from extended reach coiled tubing operations has shown that EasyReach lubricant consistently offers between 40% and 60% friction reduction in actual downhole conditions, effectively validating the lab results and doubling the friction reduction provided by conventional coiled tubing lubricants. The lubricant can be used in conjunction with the EasyReach fluid hammer tool to extend the reach of coiled tubing even farther.

EasyReach lubricant helps extend the reach of coiled tubing in long wellbores, improve efficiency, and increase certainty in coiled tubing operations, while using lower concentrations compared with other available lubricants. It offers a friction-reducing solution that is economical, efficient, and logistically easy to deploy, helping improve predictability and improve well economics.

EasyReach lubricant has been used extensively to enable Baker Hughes OptiPort? multistage fracturing system installations in extended reach applications across the United States. Significant reductions in CoF have enabled annular fracturing treatments near the toe of extended lateral wells, helping avoid NPT due to coiled tubing friction lock.

The lubricant has also been used as part of the fracture treatment during the flush stage to reduce BHA drag while pulling up from stage to stage.

This allows for smooth and quick pull-out-of-hole operations and reduces the operating time between stages.

To learn more about how EasyReach lubricant can help you extend the reach of coiled tubing in long wellbores, contact your Baker Hughes representative today, or visit bakerhughes.com/easyreach.

Applications

• Cased hole operations requiring reduction in mechanical friction;
• Coiled tubing operations;
• Extended reach interventions including
  ?—Annular fracturing;
  ?—Tubing-conveyed perforating;
  ?—Milling;
  ?—Logging;
  ?—Acidizing;
  ?—Sleeve manipulation.

Features and Benefits

• Advanced formula
  ? —Provides 40-60% reduction in CoF;
  ? —Extends reach in laterals by up to 120%;
  ? —Functions across a wide range of pressures, temperatures, and actual downhole conditions;
  ? —Outperforms conventional lubricants.
• First in industry testing
  ? —Accurately simulates downhole coiled tubing conditions;
  ? —Field results validate lab testing.
• CIRCA modeling software
  ? —Uses empirical data for job modeling;
  ? —Delivers predictable field results.

Case History1

EasyReach Lubricant Nearly Halves the Friction in an Extended-Lateral Well, Increasing Reservoir Access.

Benefits

• Significantly increases the lateral reach of CT compared to current lubricants;
• Increased lateral reach of coiled tubing in a horizontal well without the use of fluid hammer or other extended reach tools;
• Combined with the EasyReach tool, it is anticipated that lateral lengths greater than 12,000 ft should be easily achievable.

Background and challenges

• Field trial of new lubricant to confirm lab results from proprietary linear- friction testing;
• Well was 5,100 ft lateral and required over 1,000 lbf available weight on bit to activate deployment packer;
• Fluid hammer or tractor tools traditionally used for extended reach were not applicable with the specific BHA, a deployment packer, being utilized.

Baker Hughes solution and results

• The EasyReach lubricant, a newly developed friction reducer, allowed the CT to reach TD with enough available weight to activate the deployment packer and complete the job;
• The EasyReach lubricant delivered a 46% reduction of friction in wellbore;
• Field results closely matched the lab test data completed using a new measuring process.

Case History2

EasyReach Lubricant Nearly Halves the Friction in an Extended-Lateral Well, Increasing Reservoir Access.

Results

• Achieved a 0.13 CoF in an extended lateral, enabling a TCP operation in the toe of a well with a lateral length of 10,277 ft;
• Reduced CoF by 46% with a lubricant concentration of only 1.2% in proppant- laden frac fluid;
• Enabled treatment of 10 stages that would have been otherwise unreachable with CT.

Challenges

• The 7-in. to 4?-in. liner completion with no tieback created lateral reach concerns for 2-in. CT;
• Toe needed to be perforated in the 10,277-ft lateral;
• Lateral length of 7,100 ft with a required minimum 900-lbf (1220-Nm) weight-on-bit to actuate the resettable packer.

Baker Hughes Solution

• EasyReach extended-reach CT service with lubricant
• OptiPort multistage fracturing system
• Baker Hughes SHADOW frac plugs

Case History3

EasyReach Lubricant Enabled Intervention in Horizontal, Sand-Screen-Completed Well.

Results

• Delivered scale cleanout, acid washing, and logging operations by reducing CoF by more than 40%;
• Saved 6 hours rig time and 220 gallons of lubricant by performing on-site force- matching;
• Prevented CT helical buckli g and BHA friction lock;
• Enabled operator to conduct a successful similar intervention on a second, nearby well.

Challenges

• Clean scale, acid wash, and log a purportedly unreachable lateral
• Accommodate crane limitations by intervening with maximum CT size of 2-in.
• Mitigate the CT tendency to helically buckle across the comparatively large wellbore
• Overcome increased friction caused by sand screens.

Baker Hughes solution

• EasyReach extended reach CT services;
  ? —EasyReach metal-to-metal lubricant;
  ? —EasyReach fluid hammer tool.
• CIRCA modeling and simulation software;
• RotoJet jetting tool.