Drilling Deep: Pushing the HPHT Envelope

By George Backwell
Monday, August 25, 2014
Offshore drill rig: File photo

With demand for hydrocarbons increasing and costs rising, the E&P industry is also facing numerous technical challenges including the development of High Pressure – High Temperature (HPHT) reserves, explains energy forecasters, marine market researchers & renewables analysts Douglas-Westwood in 'DW Monday'.

HP / Extreme HP typically refers to borehole pressures between 10,000 psi and 20,000 psi whereas HT / Extreme HT refers to borehole temperatures between 300 degrees Fahrenheit and 400 degrees Fahrenheit. Pressures and temperatures outside these ranges are referred to as “Ultra-HPHT”, which represents the absolute limits of current technology.

While the HPHT term is widely used, it should be noted that pressure and temperature do not always correlate: in Thailand many wells have extremely high temperatures without correspondingly high associated pressures. The term HPHT is also commonly associated with the high value offshore markets despite the large market opportunity existing onshore. A good example is the Haynesville shale gas play where one E&P Company has completed more than 300 HPHT wells.

HPHT reservoirs drive new technology requirements in a number of ways. For example, drilling in HP reservoirs necessitates heavyweight drill pipe (HWDP). HWDP can be at the upper limits of the shear rams on older BOP stacks, which are intended to cut through pipe in an extreme well control event. High temperatures also impact on directional drilling where some types of drilling motors rely on polymer sealing elements, which have temperature limitations. In this particular example, the operational envelope has expanded greatly through new material formulations.

In order to meet the HPHT challenge, there is ongoing work at a joint industry level, such as BP’s “20K” project (20,000 psi, 300 degrees Fahrenheit), and within the R&D departments of the Oilfield Services (OFS) companies.

The ability to develop new tools and services for the most extreme wells is increasingly viewed as a unique competitive differentiator. As a consequence, the OFS giants are working on a suite of technologies including Logging-While Drilling (LWD) tools, & Perforating Guns that can function reliably in ultra-HPHT reservoirs.
 
As the HPHT envelope continues to expand, E&P Companies are simultaneously trying to bring upstream costs under control. Clearly these drivers may not always be compatible. However, the size of the prize makes development of HPHT reserves a necessity, especially for International Oil Companies (IOCs).

Source: Douglas-Westwood 'DW Monday'

 

Maritime Reporter August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

USCG Rescues Unconscious Boater

The Coast Guard rescued an individual from a marsh flat in Barataria Waterway located approximately six miles north of Grand Isle, Tuesday. Coast Guard Sector

SHIPPINGInsight to Focus on Ship Telematics

The subject of ship telematics will be prominently featured at the upcoming SHIPPINGInsight 2015 Fleet Optimization Conference & Exhibition, which takes place in Stamford, Conn.

Euronav Acquires $ 750 mi Facility

The Executive Committee of Euronav NV today announced that it has signed a new USD 750 million senior secured amortizing revolving credit facility led by DNB

Technology

Subsea 7 Bags $150 million Offshore UK Contract Maersk

Offshore contractor Subsea 7 has been awarded a $150 million subsea, umbilical, riser and flowline (SURF) contract by Maersk Oil for the development of the Culzean field in the UK North Sea.

SMOE Wins $1bln Multi-platform Culzean Contract

Singapore's offshore services provider Sembcorp Marine has won an engineering, procurement and construction (EPC) contract worth over USD1 billion for the Culzean

SHIPPINGInsight to Focus on Ship Telematics

The subject of ship telematics will be prominently featured at the upcoming SHIPPINGInsight 2015 Fleet Optimization Conference & Exhibition, which takes place in Stamford, Conn.

Energy

Euronav Acquires $ 750 mi Facility

The Executive Committee of Euronav NV today announced that it has signed a new USD 750 million senior secured amortizing revolving credit facility led by DNB

NewLead's MT Nepheli Update

NewLead Holdings Ltd.announced today a review of the commercial performance of one of its bitumen tanker vessels, the MT Nepheli since the vessel was delivered to NewLead's fleet.

Nigeria Ramps up Push to Eradicate Oil Theft

Nigerian authorities hope to put an end to rampant oil theft in eight months by increasing drone and naval monitoring of territorial waters and working with local communities,

Consulting

Glosten Acquires Noise Control Engineering

Seattle-based naval architecture and marine engineering consultancy Glosten, Inc. has acquired Noise Control Engineering LLC (NCE), a consulting firm specializing in ship noise and vibration control.

Nominations Invited for BIMCO Awards

BIMCO, the world’s largest international shipping association is now calling for nominations for its prestigious awards, to be presented in Hamburg in November 2015.

AFBO to Provide Security in Arctic Waters

State of the Arctic Council to establish a new mechanism to strengthen operational cooperation and coordination of activities at sea. This is dictated by the

Offshore Energy

Subsea 7 Bags $150 million Offshore UK Contract Maersk

Offshore contractor Subsea 7 has been awarded a $150 million subsea, umbilical, riser and flowline (SURF) contract by Maersk Oil for the development of the Culzean field in the UK North Sea.

SMOE Wins $1bln Multi-platform Culzean Contract

Singapore's offshore services provider Sembcorp Marine has won an engineering, procurement and construction (EPC) contract worth over USD1 billion for the Culzean

India's Oil Exploration near South China Sea Irks China

The state-run China Daily says that India's plans to conduct oil exploration off Vietnam coast in the South China Sea is "illegal and is an "unwise move" that

 
 
Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.5814 sec (2 req/sec)